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Find the mean deviation about the mean f...

Find the mean deviation about the mean for the following data: Marks obtained 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Number of students 2 3 8 14 8 3 2

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RD SHARMA ENGLISH-STATISTICS-All Questions
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  2. Calculate mean deviation from the median of the following data: Cla...

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  3. Find the mean deviation about the mean for the following data: Mark...

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  4. The age distribution of 100 life-insurance policy holders is as follow...

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  7. Find the mean deviation from the median for the following data: Size:,...

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  8. Find the mean deviation about the median of the following frequency di...

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  9. Find the mean deviation from the mean for the following data: Size:, 2...

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  10. Find the mean deviation from the mean for the following data: Size:...

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  11. The following table gives the number of finished articles turned out ...

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  12. If a is positive integer and the frequency distribution: x : , A, 2a, ...

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  13. There are 60 students in a class. The following is the frequency dis...

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  14. Find the mean, and standard deviation for the following data: (i) Y...

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  15. Find the mean and standard deviation of first n terms of an A.P. whose...

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  16. Find the mean of the following frequency distribution: Variable (xi)...

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  17. Calculate the variance and standard deviation from the data given b...

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  18. Find the variance and standard deviation for the following distribu...

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  19. Find the standard deviation for the following data: (i) x : , 3, 8, 13...

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  20. Calculate the mean and standard deviation for the following distrib...

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